<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script>
			var str = '星期一';
			var s = '';
			switch(str){
				case '星期一':
					s= '星期一';
					break;
			}
			document.write(s);
			
		</script>
	</head>
	<body>
	</body>
</html>
